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(3r+5)/2-2=13
We move all terms to the left:
(3r+5)/2-2-(13)=0
We add all the numbers together, and all the variables
(3r+5)/2-15=0
We multiply all the terms by the denominator
(3r+5)-15*2=0
We add all the numbers together, and all the variables
(3r+5)-30=0
We get rid of parentheses
3r+5-30=0
We add all the numbers together, and all the variables
3r-25=0
We move all terms containing r to the left, all other terms to the right
3r=25
r=25/3
r=8+1/3
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